Caulking tube valve



FIG. 1 is a side elevational view of a caulking tube valve showing mynew design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is an elevational view showing the side opposite that seen inFIG. 1;

FIG. 5 is a bottom plan view;

FIG. 6 is a perspective view; and

FIG. 7 is a bottom plan view.

The ornamental design for a caulking tube valve, as shown.